class_docstr: GRU gate for matrix, similar to the official code.
  Please refer to section 3.4 of the paper for the formula.
code: def reset_parameters(self):
      init.xavier_uniform_(self.W)
      init.xavier_uniform_(self.U)
      init.zeros_(self.bias)
  
imports: import torch
  import torch.nn
  from dgl.nn.pytorch import GraphConv
  from torch.nn import init
  from torch.nn.parameter import Parameter
label_desc: Use image node_id 2 for calling the MatGRUGate obj's underlying member method code with example usage: obj.reset_parameters() without return types